BITSAT 2012 Paper

Section: Physics

Question : 4 of 150

Marks: +1, -0

A horizontal overhead powerline is at height of 4m from the ground and carries a current of 100A from east to west. The magnetic field directly below it on the ground is (µ0 = 4π × 10–7 Tm A–1)

2.5 × 10–7 T southward
5 × 10–6 T northward
5 × 10–6 T southward
2.5 × 10–7 T northward

Validate

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